Ozaukee County

Ozaukee County
Port Washington Harbor, Ozaukee County; Photographer: Bijaya Gurung
County Seat: Port Washington

121 W. Main St., PO Box 994

City: Port Washington
Zip: 53074
Phone: 262-238-6400
Land Area: 232.0 sq. miles
Elevation: 612 ft. at Port Washington
Number of Lakes: 38
Area in Lakes: 703 acres (1.10 sq. miles)
Rivers: Milwaukee, Cedar Creek, Little Menomonee,Onion River, Sauk Creek
Major Watershed: Lake Michigan, Milwaukee River
Geographical Province: Eastern Ridges and Lowlands

Almost entirely sugar maple, basswood and elm. West Central: Small area of black spruce, tamarack and cedar.


1930: 17,394
1970: 54,461
1980: 66,981
1990: 72,831
2000: 82,317
2010: 86,395
2020: 91,503

WCA District: Southeast

WCA President & CEO Mark O'Connell has been a part of this week's @NACoTweets Forward Together Symposium, speaking today in St. Paul in Ramsey County, Minnesota on a panel discussing "Lead Intergovernmental Partnerships." #WisCounties

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